high-density lipoprotein

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

n. A complex of lipids and proteins in approximately equal amounts that functions as a transporter of cholesterol in the blood. High levels are associated with a decreased risk of atherosclerosis and coronary heart disease.

from Wiktionary, Creative Commons Attribution/Share-Alike License

n. a class of lipoprotein that transports cholesterol to the liver from other tissue; high levels may decrease the risk of coronary heart disease

n. a lipoprotein that transports cholesterol in the blood; composed of a high proportion of protein and relatively little cholesterol; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis